Kathrine Switzer was the first woman to run the Boston Marathon in 1969. The marathon organizer and other male runners were unable to stop her from finishing the race. It was not until 1972 that women were allowed to run the Boston Marathon officially.

Throughout history, women have stood up and fought to break down barriers imposed on them from stereotypes and societal expectations. The trailblazers in these photos made history and redefined what a woman could be. In doing so, they paved the way for future generations to stand up and continue to fight for equality.

Kathrine Switzer was the first woman to run the Boston Marathon in 1969. The marathon organizer and other male runners were unable to stop her from finishing the race. It was not until 1972 that women were allowed to run the Boston Marathon officially.